International Isotopes Inc. manufactures and sells nuclear medicine calibration and reference standards, cobalt-60 products, sodium iodide I-131 drug product, and radiochemicals for clinical research and life sciences in the United States and internationally. It operates through five segments: Theranostics Products, Cobalt Products, Nuclear Medicine Standards, Medical Devices, and Fluorine Products. The Theranostics Products segment produces and distributes Iodine-131 generic drug product and va...